Flexible wood preservative bandages



Oct. ll, 1960 R. F. NELSON 2,955,331

FLEXIBLE WOOD PRESERVATIVE BANDAGES FiledMar-ch 7, 1957 'lill/11111172INVENTOR FA?, 6 /0 Rabe/f F, -Ne/son BY @Mgg ATTORNEY Normally, prior tothe application of the preservative material a tear strip indicated ingeneral by the numeral 13 is applied about the marginal edges of onehalf of the backing sheet 10. In the particular arrangement illustrated,the tear strip comprises a flexible 'strip` of pressure sensitivefilament tape which is extremely strong and which will attach itself tothe backing sheet. One end 14 of the tape 13 extends outwardly from thesheet near the potential central line of fold 15. From the line of fold,the tape 13 extends along'one-half of the length of the sheet to a pointnear an end of the sheet, then extends continuously Iacross the end ofthe sheet,

and then extends longitudinally of the sheet to the potential centerline 15. Y

After the preservative coating 12 has been applied, .a strip 16 oftissue is applied, the tissueV covering extending entirely over thesurface of the preservative. This covering 1-6 terminates short of themarginal edges of the sheet 10 but preferably completely covers thegreasy coating. A-fter the tissue sheet 16 has been applied, the bandagemay be centrally folded along the potential fold line 15 so that the twoends of the sheet are in superimposed relation.

After folding, the three marginal edges of the folded sheet are heatsealed together, the films 11 of the two superimposed sheet ends bondingtogether as indicated in Figure of the drawings. VThe seal normallytakes place outwardly fof the tear strip 13 although actually the sealmay also extend inwardly of the tear strip if it is so desired. r v

The bandage may be shipped and stored in this form. It is usually takento the point of treatment while in the folded condition described. Whenit is desired to treat 4a pole such as the pole B illustrated in Figurel of the drawings, the earth around the pole is removed to a depth ofperhaps 1S inches to two feet below the ground line and the surface ofthe pole is cleaned in any suit- -able way. The bandage A is then openedby grasping the projecting end 14 of the tear strip 13 and exerting anupward force against the overlying portion. of the sheet iti. The tearstrip thus rips the bandage open preferably just inwardly of the area ofseal between the two ends of the sheet. As the tear strip 13 iscontinuous between one end of the fold line 15 and the other endthereof, a generally U-shaped tear can be providedseparating one end ofthe sheet from the other. The sheet may then be unfolded into ilat form.The unfoldedv sheet may be wrapped about the pole, the upper edge of thebandage extending somewhat above the ground line and extending into theexcavation. The bandage A is held to the pole B by staples such as 17 orby other suitable fastening means.

The tissue covering sheet 16 lies between the surface of the pole andthe layer 12 of pole preservative material but due to the porous natureof this covering sheet,'it does not serve as a barrier to the passage ofthe preservative material therethrough. Thus, the preservative materialmay extend into contact with the pole to treat the same.

In accordance with the patent statutes, Irhave described V2,955,1394 ll,

i the principles of construction and operation of my flexible woodpreservative bandage, and while I have endeavored to set forth the bestembodiments thereof, I desire to have it understoodthat changes may bemade within the scope of the following claims without departing from thespirit of my invention.

I claim:

l. A wood pole preservative bandage including asheet of fibrous paperhaving a grease resistant heat scalable coating thereon, a layer of woodpreservative material arranged in a layer upon said coating spaced fromthe edges of said sheet, a layer of fibrous tissue overlying said woodpreservative material yand secured to said sheet outwardly of saidpreservative material layer, said sheet with its coating, said greaseproof material and said l-ayer of tissue being folded intermediate theends of the sheet, the ends and side edges of said sheet being heatsealed together, whereby when said sheet is unfolded, together with saidpreservative material and said tissue layer,Y and wrapped about a polewith said fibrous tissue layer L-against said pole, said tissue layermay act as a wick to transmit said preservative material to said pole,said preservative material comprising a greasy substance containingheavy fractions and less viscous fractions,` said tissue restraining theheavier fractions of said material and permitting passage of said lessviscous fractions.

`2. A wood pole preservative bandage including an outer sheet of readilypliable grease resistant material, a lm of wood preservative materialarranged in a layer on said sheet and spaced from the edges thereof, athin sheet of porous material overlying said layer of material, saidsheet with its coating, said grease proof material and said porous sheetbeing folded intermediate the ends of said outer sheet, the ends andside edges of said outer sheet being sealed together, whereby when saidsheet is unfolded, together with said layer of preservative ma terialand said porous sheet, and wrapped about a pole with the porous sheetagainst said pole, said porous sheet may act as a wick to transmit saidpreservative material to said pole, said preservative materialcomprising a greasy substance containing heavy fractions and lessviscous fractions, said porous sheet restraining the heavy fractions ofsaid material and permitting passage of said less viscous fractions.

3. The structure of claim 2 and in which said outer sheet is heatscalable, and in which the margins of said outer .sheet are heat sealedtogether.

Y4. The structure of claim 2 and in which said porous sheet comprises afibrous tissue sheet.

References Cited in the file of this patent UNITED STATES PATENTSSchmittutz Dec. 6, 1938 2,143,043 Wexler Ian. l0, 1939 2,329,262 GanzSept. 14, 1943 2,676,702' Whitefoot Apr. 27, l954 V2,752,038 Abbott June26, 1956 Y FOREIGN PATENTS 560,879 Great Britain Apr. 25, 1944

1. A WOOD POLE PRESERVATIVE BANDAGE INCLUDING A SHEET OF FIBROUS PAPERHAVING A GREASE RESISTANT HEAT SEALABLE COATING THEREON, A LAYER OF WOODPRESERVATIVE MATERIAL ARRANGED IN A LAYER UPON SAID COATING SPACED FROMTHE EDGES OF SAID SHEET, A LAYER OF FIBROUS TISSUE OVERLYING SAID WOODPRESERVATIVE MATERIAL AND SECURED TO SAID SHEET OUTWARDLY OF SAIDPRESERVATIVE MATERIAL LAYER, SAID SHEET WITH ITS COATING, SAID GREASEPROOF MATERIAL AND SAID LAYER OF TISSUE BEING FOLDED INTERMEDIATE THEENDS OF THE SHEET, THE ENDS AND SIDE EDGES OF SAID SHEET BEING HEATSEALED TOGETHER, WHEREBY WHEN SAID SHEET IS UNFOLDED, TOGETHER WITH SAIDPRESERVATIVE MATERIAL AND SAID TISSUE